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Cheap flights from Washington to Jeju-do from $1,206

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Jeju-do departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington to Jeju-do

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:10 am - 6:20 pm
SEA
-
CJU
26h 10m
2 stops
Multiple Airlines Logo
10:15 pm - 10:05 am
CJU
-
SEA
27h 50m
2 stops
$1,206Multiple Airlines
Sun, Mar 22 - Mon, Mar 30
Multiple Airlines Logo
12:55 am - 2:00 pm
SEA
-
CJU
21h 05m
2 stops
Multiple Airlines Logo
9:15 pm - 2:22 pm
CJU
-
SEA
33h 07m
3 stops
$1,330Multiple Airlines
Mon, Jul 20 - Wed, Jul 22
Multiple Airlines Logo
1:10 am - 5:25 pm
SEA
-
CJU
24h 15m
1 stop
Multiple Airlines Logo
12:20 pm - 7:15 pm
CJU
-
SEA
22h 55m
1 stop
$1,367Multiple Airlines
Sun, Mar 22 - Mon, Mar 30
Multiple Airlines Logo
1:10 am - 10:20 pm
SEA
-
CJU
29h 10m
2 stops
Multiple Airlines Logo
7:25 am - 7:30 pm
CJU
-
SEA
28h 05m
2 stops
$1,389Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
Multiple Airlines Logo
1:10 am - 10:00 am
SEA
-
CJU
16h 50m
1 stop
Multiple Airlines Logo
10:15 pm - 10:05 am
CJU
-
SEA
27h 50m
2 stops
$1,397Multiple Airlines
Sun, Mar 22 - Mon, Mar 30
Multiple Airlines Logo
1:10 am - 7:10 pm
SEA
-
CJU
26h 00m
2 stops
Multiple Airlines Logo
8:30 pm - 2:55 pm
CJU
-
SEA
34h 25m
3 stops
$1,452Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
Multiple Airlines Logo
12:55 am - 7:30 pm
SEA
-
CJU
26h 35m
2 stops
Multiple Airlines Logo
9:35 pm - 10:50 am
CJU
-
SEA
29h 15m
2 stops
$1,558Multiple Airlines
Mon, Jul 20 - Wed, Jul 22
Multiple Airlines Logo
1:10 am - 7:10 pm
SEA
-
CJU
26h 00m
2 stops
Multiple Airlines Logo
7:30 am - 10:05 am
CJU
-
SEA
18h 35m
1 stop
$1,644Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
Multiple Airlines Logo
12:45 am - 9:50 am
SEA
-
CJU
17h 05m
1 stop
Multiple Airlines Logo
10:30 am - 4:10 pm
CJU
-
SEA
21h 40m
1 stop
$1,744Multiple Airlines
Tue, Mar 24 - Wed, Apr 1
Multiple Airlines Logo
1:55 am - 9:35 am
SEA
-
CJU
15h 40m
1 stop
Multiple Airlines Logo
9:35 pm - 10:50 am
CJU
-
SEA
29h 15m
2 stops
$1,772Multiple Airlines
Mon, Jul 20 - Wed, Jul 22

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Jeju-do that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 8, 2026.
Use the filters below to find and compare flights from Washington to Jeju-do that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 3/22

12:10 am-6:20 pm

2 stops26h 10m

Jeju City

Mon 3/30

10:15 pm-10:05 am

2 stops27h 50m

$1,206

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 7/20

12:55 am-2:00 pm

2 stops21h 05m

Jeju City

Wed 7/22

9:15 pm-2:22 pm

3 stops33h 07m

$1,330

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 3/22

1:10 am-5:25 pm

1 stop24h 15m

Jeju City

Mon 3/30

12:20 pm-7:15 pm

1 stop22h 55m

$1,367

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/24

1:10 am-10:20 pm

2 stops29h 10m

Jeju City

Wed 4/1

7:25 am-7:30 pm

2 stops28h 05m

$1,389

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Sun 3/22

1:10 am-10:00 am

1 stop16h 50m

Jeju City

Mon 3/30

10:15 pm-10:05 am

2 stops27h 50m

$1,397

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/24

1:10 am-7:10 pm

2 stops26h 00m

Jeju City

Wed 4/1

8:30 pm-2:55 pm

3 stops34h 25m

$1,452

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 7/20

12:55 am-7:30 pm

2 stops26h 35m

Jeju City

Wed 7/22

9:35 pm-10:50 am

2 stops29h 15m

$1,558

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/24

1:10 am-7:10 pm

2 stops26h 00m

Jeju City

Wed 4/1

7:30 am-10:05 am

1 stop18h 35m

$1,644

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Tue 3/24

12:45 am-9:50 am

1 stop17h 05m

Jeju City

Wed 4/1

10:30 am-4:10 pm

1 stop21h 40m

$1,744

SeattleJeju City

SEA - CJU

SEACJU

Seattle/Tacoma Intl

Mon 7/20

1:55 am-9:35 am

1 stop15h 40m

Jeju City

Wed 7/22

9:35 pm-10:50 am

2 stops29h 15m

$1,772

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Jeju-do flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Jeju-do

Fastest flight time

17h 35m

Direct flights

None
The fastest flight from State of Washington to Jeju-do takes 17h 35m
There are no direct flights from State of Washington to Jeju-do. There are no popular flight routes from State of Washington to Jeju-do.
Search flight deals

  • When did momondo last update prices for flights from Washington to Jeju-do?

    Prices for flights from Washington to Jeju-do are updated daily.

  • How old do you have to be to fly from Washington to Jeju-do?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Jeju-do.

  • What documentation or ID do you need to fly to Jeju-do?

    The travel and health documents you'll need for your trip to Jeju-do may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Jeju-do. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from State of Washington to Jeju-do?

    Price Alerts will notify you by email when the price for flights to Jeju-do from State of Washington decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from State of Washington to Jeju-do with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Jeju-do?

It is quick and easy to find Washington to Jeju-do flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Jeju-do that suits you.

Can I find flights from Washington to Jeju-do with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington to Jeju-do flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington to Jeju-do?

Once all potential Washington to Jeju-do flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington to Jeju-do right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Jeju-do, momondo offers a useful price alert feature which will track prices for flights to Jeju-do from Washington and alert you when they change.

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